David,
Tuesday, April 16, 2002, 3:01:46 PM, you wrote:
DA> Cards on the table, I have an assignment in soon and part of the
DA> deliverable is to design some relational algebra tree's based on some
DA> queries I have been given.
DA> This is one of the queries:
DA> SELECT id
DA> FROM Table1
DA>
Ok,
Cards on the table, I have an assignment in soon and part of the
deliverable is to design some relational algebra tree's based on some
queries I have been given.
This is one of the queries:
SELECT id
FROM Table1
WHERE id NOT IN
(SELECT id
FROM Table2);
I have an idea that this query
